Titanium screw is a tool concept, its classification has round head screws, self-tapping screws, hexagonal screws, countersunk head screws, cheese head screws, etc.According to the needs of customers, Xi'an Sita can customize different specifications and types of titanium screws to meet your needs.In general, since the price of titanium is relatively expensive, the price of the corresponding titanium screws is also a little more expensive than the common type of metal screws, so why do we choose titanium screws?
Ordinary stainless steel screws compared with titanium screws in high pressure environment , titanium screws have stronger compressive capacity, so in aerospace ,titanium alloy will be selected , titanium screws as one of the connectors.
Titanium screw and material advantages:
1. Low density and high specific strength: the density of titanium is 4.51g/cm3, higher than that of aluminum and lower than that of steel, copper and nickel, but the specific strength is the first among metals.
2, Corrosion resistance: titanium is a very active metal, its balance potential is very low, in the medium of thermodynamic corrosion tendency.But in fact titanium is very stable in many media, such as titanium in oxidation, neutral and weak reducibility and other media is corrosion resistance.
3, Good heat resistance: the new titanium alloy can be used at 600℃ or higher temperature for a long time.
4, Good low temperature resistance: titanium alloy TA7 (Ti-5Al-2.5Sn), TC4(Ti-6Al-4V) and Ti-2.5Zr-1.5Mo as the representative of low temperature titanium alloy, its strength increases with the decrease of temperature, but the plastic change is little.It maintains good ductility and toughness at -196-253℃ low temperature and avoids metal cold brittleness. It is an ideal material for cryogenic vessels, storage tanks and other equipment.
5, Strong anti-damping performance: titanium metal by mechanical vibration, electrical vibration, compared with steel, copper metal, its own vibration attenuation time is long.
6, Non-magnetic, non-toxic: titanium is a non-magnetic metal, in a very large magnetic field will not be magnetized, non-toxic and human tissues and blood have a good compatibility, so it is used by the medical community.
7, The tensile strength and its yield strength is close to: the performance of titanium shows that its tensile strength ratio (tensile strength/yield strength) is high, indicating the metal titanium material in the forming of plastic deformation.The ratio of yield limit to elastic modulus of titanium is large, so that the resilience of titanium forming is large.
8, Good heat transfer performance: although the thermal conductivity of titanium is lower than carbon steel and copper, but due to the excellent corrosion resistance of titanium, so the wall thickness can be greatly thinned, and the heat transfer method of the surface and steam is drip condensation, reducing the heat group, too the surface does not scale can also reduce the thermal resistance, so that the heat transfer performance of titanium is significantly improved.
9. Low elastic modulus: the elastic modulus of titanium at room temperature is 106.4 high standard A, 57% of steel.
10, Suction performance: titanium screw is a very active chemical properties of the metal, at high temperature can react with many elements and compounds.Titanium suction mainly refers to the reaction with carbon, hydrogen, nitrogen and oxygen at high temperature.